<html>
    <head>
        <title>测试网页</title>
    </head>
    <body>
        <h1>我的超文本网页</h1>
        <h3>欢迎大家进入我的网站</h3>
        <br/>
        <h2>cccc</h2>
        <br/>
        <a href = A.html target = _self>返回</a>
    </body>
</html>